HIKVISION DS-KB2421-IM - Wiring Description

Video Door Phone·User Manual
4
Figure 3-2 Wire of Door Station
Table 3-2 Descriptions of Terminals and Interfaces (Door Station)
Name
No.
Color
Interface
Description
Wire
Group
(Four-Wir
e)
E1
Red
5V
Power Supply (from Indoor Station)
E2
Blue
CVBS
Video Output
E3
Yellow
AUIDO
Audio Input/Output
E4
Black
GND
Grounding Signal
Wire
Group
(Lock)
F1
Red
NO
Door Lock Relay Output/Normally Open
F2
Blue
COM
Door Lock Relay Output/Common
F3
Yellow
NC
Door Lock Relay Output/Normally Closed
3.2 Wiring Description
Purpose:
The four-wire indoor station and the four-wire door station are 2 basic but major
components in a four-wire video intercom system. As for extended components, the
analog camera and the electric bolt can be connected to the indoor station and the door
station respectively in a four-wire video intercom system.
Up to 2 door stations are supported simultaneously in the intercom system.
Up to 3 indoor stations are supported simultaneously in the intercom system.
Here take 3 wirings as example.